Ruth Amos, an 18-year-old student from the UK, has come up with a simple and ingenious device for helping the elderly hobble their way up stairs with as little chance of hip-breakage as possible. Dubbed the StairSteady, it's essentially a bar that one can hold onto as they walk up the stairs, moving up or down with them while they move and keeping them steady. It's a bit pricey at $642 due to the absolutely worthless US dollar, but that's a lot cheaper than a hip replacement. Kudos, Ruth. [BBC via Popgadget]